CN111585852B - Double-stack dialing method, equipment and storage medium - Google Patents
Double-stack dialing method, equipment and storage medium Download PDFInfo
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- CN111585852B CN111585852B CN202010307416.3A CN202010307416A CN111585852B CN 111585852 B CN111585852 B CN 111585852B CN 202010307416 A CN202010307416 A CN 202010307416A CN 111585852 B CN111585852 B CN 111585852B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L67/14—Session management
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Abstract
The invention discloses a double-stack dialing method, equipment and a storage medium, wherein the method comprises the following steps: initiating double-stack negotiation and sending a PADI broadcast message, receiving the inquired PADO message replied by the server and storing the PADO message in a linked list; opening two session channels to carry out double-stack dialing; taking out an unprocessed PADO message, and sending a PADR message to a server sending the unprocessed message; initiating PPP LCP negotiation to a server of the PADO message currently being processed; when the negotiation is passed, PPP authentication is carried out; and when the authentication is successful, sending a corresponding protocol message to the server at the moment according to the conversation channel at the moment to carry out NCP negotiation, and when the negotiation is successful, setting the dialing state of ipv4 or ipv6 to be successful so as to finish double-stack dialing. The invention can ensure that when a plurality of servers supporting different protocols exist in the local area network, the double-stack dialing can not fail or only one protocol can be successfully dialed.
Description
Technical Field
The invention relates to the field of computer network communication, in particular to a double-stack dialing method, equipment and a storage medium.
Background
At present, a dual-stack PPPoE (PPP over ethernet protocol) dialing method is generally performed according to the following procedures:
the method comprises the following steps: a PPPoE Client initiates PPPoE Discovery phase negotiation and sends a PADI (PPPoE Active Discovery Initiation) broadcast message;
step two: after receiving a PADI (packet Discovery and Discovery for PPPoE) message sent by a PPPoE Client, a PPPoE Server (a Server of a PPPoE protocol) replies a PADO (packet Discovery and Offer) message, informs an MAC (media access control) address of the PPPoE Client Server, and allows the PPPoE Client to initiate connection;
step three: after receiving a PADO message sent by a server of a PPPoE protocol, a PPPoE Client sends a PADR (PPPoE Active Discovery Request) message according to an MAC address in the PADO message, and the subsequent PADO messages sent by the servers receiving other PPPoE protocols are not processed any more;
step four: after receiving the PADR message, the PPPoE Server replies a PADS (PPPoE Active Discovery Session-configuration) message to the PPPoE Client, and at this time, the PPPoE Discovery phase negotiation process is finished, and PPP LCP negotiation is started;
step five: the two negotiation parties mutually send an LCP Config-Request message, confirm the negotiation options in the received Config-Request message, and make appropriate response according to the support and acceptance conditions of the options. If both ends respond to Config-ACK (configuration confirmation), the LCP link is marked to be established successfully, otherwise, the Request message is continuously sent until the opposite end responds to the ACK message;
step six: the PPPoE Client terminal in the PAP/CHAP stage sends a user name and a password to the PPPoE Server, and the PPPoE Server performs authentication;
step seven: in the PPP NCP stage, the PPPoE Client simultaneously sends ipcp and ipv6cp messages to start double-stack dialing, negotiates fields such as ip addresses, DNS server addresses and interface descriptors, and succeeds in double-stack dialing after negotiation.
The existing double-stack PPPoE dialing method has the following defects:
defect one: if a plurality of PPPoE servers exist in the network, the PPPoE Client firstly receives a PADO message replied by the PPPoE Server which cannot be authenticated, and PPPoE dialing failure can be caused.
And defect two: if the PPPoE servers of ipv4 and ipv6 are not the same Server in the network, this will result in NCP negotiation of ipv4 or ipv6 only.
And a third defect: if the PPPoE servers of ipv4 and ipv6 are not the same Server in the network, and the ipcp protocol message is sent to the PPPoE Server of ipv6, the PPPoE Server of ipv4 will cause dialing failure if the ipv6cp protocol message is sent to the PPPoE Server of ipv 4.
That is, when a PPPoE Client sends a PADI message, the PADI is a broadcast message, after the broadcast message is sent, all devices in the local area network receive the message, and if multiple PPPoE servers exist in the network at this time, the multiple PPPoE servers all reply to the PPPoE Client PADO message.
If the negotiation is initiated again, the procedure is the same as above, so that the dual stack dialing cannot be successful all the time.
The prior art is therefore still subject to improvements and enhancements.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to provide a dual-stack dialing method, device and storage medium, which can prevent dual-stack dialing failure even when multiple PPPoE servers supporting different protocols exist in a local area network, and further stabilize the PPPoE dual-stack negotiation process.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a dual stack dialing method, including the following steps:
s1, initiating double stack negotiation and sending PADI broadcast message to inquire PPPoE server, receiving the PADO message returned by the inquired PPPoE server and storing in a linked list;
s2, opening two conversation channels to carry out double-stack dialing;
s3, taking out an unprocessed PADO message for processing, sending a PADR message to the PPPoE server sending the unprocessed PADO message, and executing the step S4 when receiving the PADS message fed back by the PPPoE server of the unprocessed PADO message, otherwise, processing the next unprocessed PADO message;
s4, initiating PPP LCP negotiation to the PPPoE server of the PADO message being processed currently, and processing the next unprocessed PADO message when the PPP LCP negotiation is not passed;
s5, when PPP LCP negotiation passes, PPP authentication is carried out, and the next unprocessed PADO message is processed when authentication does not pass;
s6, when PPP authentication is successful, sending a corresponding protocol message to the current PPPoE server according to the current session channel to carry out NCP negotiation, and when NCP negotiation is successful, setting the dialing state of ipv4 or ipv6 to be successful so as to complete double-stack dialing.
On the other hand, the invention also provides a dual-stack dialing device, which comprises a processor and a memory;
the memory has stored thereon a computer readable program executable by the processor;
the processor, when executing the computer readable program, implements the steps in the dual stack dialing method as described above.
In yet another aspect, the present invention also provides a computer readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps in the dual stack dialing method as described above.
In the dual stack dialing method, device and storage medium provided by the invention, the method comprises the following steps: initiating double stack negotiation and sending a PADI broadcast message to query a PPPoE server, receiving a PADO message replied by the queried PPPoE server and storing the PADO message in a linked list; opening two session channels to carry out double-stack dialing; taking out an unprocessed PADO message for processing, and sending a PADR message to a PPPoE server which sends the unprocessed PADO message; initiating PPP LCP negotiation to a PPPoE server of the PADO message currently being processed; when PPP LCP negotiation passes, PPP authentication is carried out; and when the PPP authentication is successful, sending a corresponding protocol message to the current PPPoE server according to the current session channel to carry out NCP negotiation, and when the NCP negotiation is successful, setting the dialing states of ipv4 or ipv6 successfully to finish double-stack dialing. The invention can prevent the double-stack dialing failure or the success of dialing only one protocol when a plurality of PPPoE servers supporting different protocols exist in the local area network, thereby further stabilizing the PPPoE double-stack negotiation process.
Drawings
FIG. 1 is a flow chart of a dual stack dialing method according to a preferred embodiment of the present invention;
FIG. 2 is a diagram illustrating an operating environment of a dual stack dialer according to a preferred embodiment of the present invention.
FIG. 3 is a functional block diagram of a preferred embodiment of the system for installing a dual stack dialer program according to the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a dual stack dialing method according to an embodiment of the present invention includes the following steps:
s1, initiating double stack negotiation and sending PADI broadcast message to inquire PPPoE server, receiving the PADO message returned by the inquired PPPoE server and storing in linked list.
Specifically, during the dual-stack dialing, a first step of the PPPoE discovery phase is that a PPPoE client first sends a PADI packet, and the PPPoE client sends the PADI packet in a broadcast manner, so that a destination address field of an ethernet frame corresponding to the PADI packet should be filled with all 1 s, and a source address fills an MAC address of a user host, and a broadcast packet may be received by a plurality of PPPoE servers. Specifically, the step S1 specifically includes:
initiating double stack negotiation and sending PADI broadcast message, starting up dialing timer, receiving inquired PADO message replied by PPPoE server and storing in linked list when the dialing timer is not overtime, otherwise resending PADI broadcast message.
Specifically, in this embodiment, by setting a dialing timer, when the time is not expired, the PADO message fed back by the PPPoE server is received, and after the time is expired, it indicates that the local dialing fails, and the dual-stack dialing needs to be performed again, that is, the PADI broadcast message is retransmitted, so that the waiting time can be prevented from being too long, and the efficiency of the dual-stack dialing is accelerated.
And S2, opening two conversation channels to carry out double-stack dialing.
In this embodiment, the two session channels are respectively used for accessing PPPoE servers of ipv4 and ipv6, and since the PPPoE server feeding back the PADO message may be a server of ipv4 or a server of ipv6, the present invention is provided with the two session channels, which are respectively used for accessing a PPPoE server of ipv4 or a PPPoE server of ipv6, negotiation processes of the two channels are consistent, and only messages in an NCP negotiation stage are ipcp and ipv6cp, so that when a plurality of PPPoE servers supporting different protocols exist in a local area network, a double-stack dialing failure will not be caused or only one protocol can be dialed successfully, thereby making a PPPoE double-stack negotiation process more stable.
S3, taking out an unprocessed PADO message for processing, sending a PADR message to the PPPoE server sending the unprocessed PADO message, and executing the step S4 when receiving the PADS message fed back by the PPPoE server of the unprocessed PADO message, otherwise, processing the next unprocessed PADO message.
In this embodiment, when performing dual stack dialing, the PPPoE client provided by the present invention sequentially processes the PADO messages stored in the linked list, specifically, the PPPoE client takes out a first unprocessed PADO message from the linked list, sends the PADR message to the PPPoE server that sends the PADO message, and sets the PADO message to be in processing to avoid subsequent repeated processing, where the PADR message is the third step of the PPPoE discovery phase, that is, the PPPoE client sends a unicast request message to the PPPoE server, and after receiving the PADO message, the PPPoE client knows the MAC address of the PPPoE server that sends the PADO message, so that the source address of the ethernet frame corresponding to the PADR message is filled in the MAC address of the PPPoE client, and the destination address of the ethernet is filled in the MAC address of the PPPoE server that sends the PADO message. When the PPPoE server receives the PADR message, the last step of the PPPoE discovery phase is carried out, a PPP session is ready to be started, at the moment, the PPPoE server distributes a unique session process ID for the session and sends the session process ID to the PPPoE client side for a PADS message, the PADS message carries the session ID, and if the PPPoE client side does not receive any PADS message, the PADO message processing failure is indicated. Specifically, the step S3 specifically includes;
taking out an unprocessed PADO message for processing, sending a PADR message to a PPPoE server which sends the unprocessed PADO message, and setting the unprocessed PADO message as being processed;
and starting a message timer, when the timer is not overtime and receives a PADS message replied by the PPPoE server which sends the unprocessed PADO message, refreshing the message timer and starting a PPP LCP negotiation stage, otherwise, marking the currently processed PADO message as failed processing and processing the next unprocessed PADO message, and simultaneously deleting the message timer.
Specifically, the embodiment of the invention judges whether the PADO message fails to be processed by setting the message timer, if the PADS message is not received after overtime, the entry PADO message is indicated to fail to be processed, and the next unprocessed PADO message is directly processed, so that the overlong waiting time can be prevented, and the efficiency of double-stack dialing is improved.
S4, initiating PPP LCP negotiation to the PPPoE server of the PADO message being processed currently, and processing the next unprocessed PADO message when the PPP LCP negotiation is not passed.
In this embodiment, when receiving the PADS message, it indicates that the discovery phase of the dual-stack dialing is successfully completed, and at this time, it starts to enter the PPP LCP negotiation phase, specifically, both negotiation parties (the PPPoE client and the PPPoE server that sends the PADO message being processed) send an LCP Config-Request message to each other, confirm the negotiation options in the received Config-Request message, and make an appropriate response according to the support and acceptance of these options. If both ends respond to Config-ACK, the LCP link is marked to be established successfully, otherwise, the negotiation is not passed, which indicates that the PPP LCP negotiation fails. Specifically, the step S4 specifically includes:
and initiating PPP LCP negotiation to the PPPoE server of the currently processed PADO message, and processing the next unprocessed PADO message and deleting the message timer when the Config-ACK is not responded to the PPPoE server of the currently processed PADO message or the Config-ACK responded to the PPPoE server of the currently processed PADO message is not received.
S5, when PPP LCP negotiation passes, PPP authentication is carried out, and the next unprocessed PADO message is processed when authentication does not pass.
In this embodiment, after the PPP LCP negotiation is passed, the PPP authentication is started, specifically, step S5 specifically includes:
when PPP LCP negotiation is passed, sending user name and password to PPPoE server of PADO message being processed, authenticating by the PPPoE server of PADO message being processed, if authentication is not passed, processing next unprocessed PADO message, and deleting message timer.
S6, when PPP authentication is successful, sending a corresponding protocol message to the current PPPoE server according to the current session channel to carry out NCP negotiation, and when NCP negotiation is successful, setting the dialing state of ipv4 or ipv6 to be successful so as to complete double-stack dialing.
In this embodiment, after the PPP authentication is successful, an NCP negotiation stage is started, specifically, step S6 specifically includes;
when PPP authentication is successful, if the PPPoE client channel is an IPV4 PPPoE client channel, an IPCP protocol message is sent to a PPPoE server of a PADO message being processed to carry out NCP negotiation, and when the NCP negotiation is successful, the IPV4 dialing state is set to be successful so as to finish double-stack dialing; if the current time is the ipv6de PPPoE client channel, the ipv6cp protocol message is sent to the PPPoE server of the PADO message being processed to carry out NCP negotiation, and when the NCP negotiation is successful, the ipv6 dialing state is set to be successful, so that the dual-stack dialing is completed.
Preferably, the dual stack dialing method further includes:
and when all PADO messages in the linked list fail to be processed, sending a login failure prompt.
In other words, if all the unprocessed PADO messages in the linked list are processed in sequence and failed to be processed, indicating that the login fails, that is, the dual-stack dialing is unsuccessful, the user is prompted to perform the dual-stack dialing again.
The invention can prevent double-stack dialing failure or success of dialing only one protocol when a plurality of PPPoE servers supporting different protocols exist in the local area network, thereby further stabilizing the PPPoE double-stack negotiation process.
As shown in fig. 2, based on the above-mentioned dual-stack dialing method, the present invention also provides a dual-stack dialing device, which may be a mobile terminal, a desktop computer, a notebook, a palmtop computer, a server, or other computing devices. The dual stack dialing device includes a processor 10, a memory 20 and a display 30. Fig. 2 shows only some of the components of the dual stack dialing apparatus, but it is to be understood that not all of the shown components are required to be implemented, and that more or fewer components may be implemented instead.
The memory 20 may be an internal storage unit of the dual stack dialing apparatus in some embodiments, for example, a hard disk or a memory of the dual stack dialing apparatus. The memory 20 may also be an external storage device of the dual stack dialing device in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the dual stack dialing device. Further, the memory 20 may also include both an internal storage unit of the dual stack dialing device and an external storage device. The memory 20 is used for storing application software installed in the dual-stack dialing device and various data, such as program codes for installing the dual-stack dialing device. The memory 20 may also be used to temporarily store data that has been output or is to be output. In one embodiment, the memory 20 stores a dual-stack dialing program 40, and the dual-stack dialing program 40 is executable by the processor 10, so as to implement the dual-stack dialing method according to the embodiments of the present application.
The processor 10 may be, in some embodiments, a Central Processing Unit (CPU), a microprocessor or other data Processing chip, and is configured to run program codes stored in the memory 20 or process data, such as executing the dual stack dialing method.
The display 30 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch panel, or the like in some embodiments. The display 30 is used to display information at the dual stack dialing device and to display a visual user interface. The components 10-30 of the dual stack dialing device communicate with each other via a system bus.
In one embodiment, the following steps are implemented when the processor 10 executes the dual stack dialer program 40 in the memory 20:
s1, initiating double stack negotiation and sending PADI broadcast message to inquire PPPoE server, receiving the PADO message returned by the inquired PPPoE server and storing in a linked list;
s2, opening two conversation channels to carry out double-stack dialing;
s3, taking out an unprocessed PADO message for processing, sending a PADR message to the PPPoE server sending the unprocessed PADO message, and executing the step S4 when receiving the PADS message fed back by the PPPoE server of the unprocessed PADO message, otherwise, processing the next unprocessed PADO message;
s4, initiating PPP LCP negotiation to the PPPoE server of the PADO message being processed currently, and processing the next unprocessed PADO message when the PPP LCP negotiation is not passed;
s5, when PPP LCP negotiation passes, PPP authentication is carried out, and the next unprocessed PADO message is processed when authentication does not pass;
s6, when PPP authentication is successful, sending a corresponding protocol message to the current PPPoE server according to the current session channel to carry out NCP negotiation, and when NCP negotiation is successful, setting the dialing state of ipv4 or ipv6 to be successful so as to complete double-stack dialing.
Two session channels are used to access PPPoE servers of ipv4 and ipv6, respectively.
Further, the step S1 specifically includes:
initiating double stack negotiation and sending PADI broadcast message, starting up dialing timer, receiving inquired PADO message replied by PPPoE server and storing in linked list when the dialing timer is not overtime, otherwise resending PADI broadcast message.
Further, the step S3 specifically includes:
taking out an unprocessed PADO message for processing, sending a PADR message to a PPPoE server which sends the unprocessed PADO message, and setting the unprocessed PADO message as being processed;
and starting a message timer, when the timer is not overtime and receives a PADS message replied by the PPPoE server which sends the unprocessed PADO message, refreshing the message timer and starting a PPP LCP negotiation stage, otherwise, marking the currently processed PADO message as failed processing and processing the next unprocessed PADO message.
Further, the step S4 includes:
and initiating PPP LCP negotiation to the PPPoE server of the currently processed PADO message, and processing the next unprocessed PADO message and deleting the message timer when the Config-ACK is not responded to the PPPoE server of the currently processed PADO message or the Config-ACK responded to the PPPoE server of the currently processed PADO message is not received.
Further, the step S5 specifically includes:
when PPP LCP negotiation is passed, sending user name and password to PPPoE server of PADO message being processed, authenticating by the PPPoE server of PADO message being processed, if authentication is not passed, processing next unprocessed PADO message, and deleting message timer.
Further, the step S6 specifically includes;
when PPP authentication is successful, if the PPPoE client channel is an IPV4 PPPoE client channel, an IPCP protocol message is sent to a PPPoE server of a PADO message being processed to carry out NCP negotiation, and when the NCP negotiation is successful, the IPV4 dialing state is set to be successful so as to finish double-stack dialing; if the current time is the ipv6de PPPoE client channel, the ipv6cp protocol message is sent to the PPPoE server of the PADO message being processed to carry out NCP negotiation, and when the NCP negotiation is successful, the ipv6 dialing state is set to be successful, so that the dual-stack dialing is completed.
Further, when the processor 10 executes the dual-stack dialing program 40 in the memory 20, it further implements:
and when all PADO messages in the linked list fail to be processed, sending a login failure prompt.
Please refer to fig. 3, which is a functional block diagram of a system for installing a dual stack dialing program according to a preferred embodiment of the present invention. In this embodiment, the system for installing the dual stack dialer may be divided into one or more modules, and the one or more modules are stored in the memory 20 and executed by one or more processors (in this embodiment, the processor 10) to complete the present invention. For example, in fig. 3, the system in which the dual stack dialer is installed may be divided into an initiation module 21, a channel opening module 22, a PADO message processing module 23, a PPP LCP negotiation module 24, a PPP authentication module 25, and an NCP negotiation module 26. The module referred to in the invention refers to a series of computer program instruction segments capable of completing specific functions, and is more suitable for describing the execution process of the dual-stack dialing program in the dual-stack dialing device than a program. The following description will specifically describe the function of the modules 21-26.
The initiating module 21 is configured to initiate a dual stack negotiation and send a PADI broadcast message to query the PPPoE server, receive a PADO message returned by the queried PPPoE server, and store the PADO message in a linked list;
a channel opening module 22, configured to open two session channels for dual stack dialing;
the PADO message processing module 23 is configured to take out an unprocessed PADO message for processing, send a PADR message to the PPPoE server that sent the unprocessed PADO message, and execute step S4 when receiving a PADS message fed back by the PPPoE server that sent the unprocessed PADO message, or process the next unprocessed PADO message;
a PPP LCP negotiation module 24, configured to initiate PPP LCP negotiation to the PPPoE server of the currently processed PADO message, and process the next unprocessed PADO message when the PPP LCP negotiation fails;
a PPP authentication module 25, configured to perform PPP authentication when the PPP LCP negotiation passes, and process the next unprocessed PADO message when the authentication does not pass;
the NCP negotiation module 26 is configured to, when the PPP authentication is successful, send a corresponding protocol packet to the PPPoE server at this time according to the session channel at this time to perform NCP negotiation, and set the ipv4 or ipv6 dialing status successfully when the NCP negotiation is successful, so as to complete dual-stack dialing.
Wherein, two session channels are respectively used for accessing the PPPoE servers of ipv4 and ipv 6.
The initiating module 21 is specifically configured to:
initiating double stack negotiation and sending PADI broadcast message, starting up dialing timer, receiving inquired PADO message replied by PPPoE server and storing in linked list when the dialing timer is not overtime, otherwise resending PADI broadcast message.
The PADO packet processing module 23 is specifically configured to:
taking out an unprocessed PADO message for processing, sending a PADR message to a PPPoE server which sends the unprocessed PADO message, and setting the unprocessed PADO message as being processed;
and starting a message timer, when the timer is not overtime and receives a PADS message replied by the PPPoE server which sends the unprocessed PADO message, refreshing the message timer and starting a PPP LCP negotiation stage, otherwise, marking the currently processed PADO message as failed processing and processing the next unprocessed PADO message.
The PPP LCP negotiation module 24 is specifically configured to:
and initiating PPP LCP negotiation to the PPPoE server of the currently processed PADO message, and processing the next unprocessed PADO message and deleting the message timer when the Config-ACK is not responded to the PPPoE server of the currently processed PADO message or the Config-ACK responded to the PPPoE server of the currently processed PADO message is not received.
The PPP authentication module 25 is specifically configured to:
when PPP LCP negotiation is passed, sending user name and password to PPPoE server of PADO message being processed, authenticating by the PPPoE server of PADO message being processed, if authentication is not passed, processing next unprocessed PADO message, and deleting message timer.
The NCP negotiation module 26 is specifically configured to:
when PPP authentication is successful, if the PPPoE client channel is an IPV4 PPPoE client channel, an IPCP protocol message is sent to a PPPoE server of a PADO message being processed to carry out NCP negotiation, and when the NCP negotiation is successful, the IPV4 dialing state is set to be successful so as to finish double-stack dialing; if the current time is the ipv6de PPPoE client channel, the ipv6cp protocol message is sent to the PPPoE server of the PADO message being processed to carry out NCP negotiation, and when the NCP negotiation is successful, the ipv6 dialing state is set to be successful, so that the dual-stack dialing is completed.
Preferably, the system for installing the dual-stack dialing program further comprises:
and the dialing failure prompt module is used for sending out a login failure prompt when all the PADO messages in the linked list fail to be processed.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A double-stack dialing method is characterized by comprising the following steps:
s1, initiating double stack negotiation and sending PADI broadcast message to inquire PPPoE server, receiving the PADO message returned by the inquired PPPoE server and storing in a linked list;
s2, opening two conversation channels to carry out double-stack dialing;
s3, taking out an unprocessed PADO message for processing, sending a PADR message to the PPPoE server sending the unprocessed PADO message, and executing the step S4 when receiving the PADS message fed back by the PPPoE server of the unprocessed PADO message, otherwise, processing the next unprocessed PADO message;
s4, initiating PPP LCP negotiation to the PPPoE server of the PADO message being processed currently, and processing the next unprocessed PADO message when the PPP LCP negotiation is not passed;
s5, when PPP LCP negotiation passes, PPP authentication is carried out, and the next unprocessed PADO message is processed when authentication does not pass;
s6, when PPP authentication is successful, sending a corresponding protocol message to the current PPPoE server according to the current session channel to carry out NCP negotiation, and when NCP negotiation is successful, setting the dialing state of ipv4 or ipv6 to be successful so as to complete double-stack dialing.
2. The dual stack dialing method of claim 1 wherein two session channels are used to access PPPoE servers of ipv4 and ipv6, respectively.
3. The dual stack dialing method of claim 2, wherein the step S1 specifically includes:
initiating double stack negotiation and sending PADI broadcast message, starting up dialing timer, receiving inquired PADO message replied by PPPoE server and storing in linked list when the dialing timer is not overtime, otherwise resending PADI broadcast message.
4. The dual stack dialing method of claim 3, wherein the step S3 specifically includes:
taking out an unprocessed PADO message for processing, sending a PADR message to a PPPoE server which sends the unprocessed PADO message, and setting the unprocessed PADO message as being processed;
and starting a message timer, when the timer is not overtime and receives a PADS message replied by the PPPoE server which sends the unprocessed PADO message, refreshing the message timer and starting a PPP LCP negotiation stage, otherwise, marking the currently processed PADO message as failed processing and processing the next unprocessed PADO message.
5. The dual stack dialing method of claim 4 wherein said step S4 includes:
and initiating PPP LCP negotiation to the PPPoE server of the currently processed PADO message, and processing the next unprocessed PADO message and deleting the message timer when the Config-ACK is not responded to the PPPoE server of the currently processed PADO message or the Config-ACK responded to the PPPoE server of the currently processed PADO message is not received.
6. The dual stack dialing method of claim 5, wherein the step S5 specifically includes:
when PPP LCP negotiation is passed, sending user name and password to PPPoE server of PADO message being processed, authenticating by the PPPoE server of PADO message being processed, if authentication is not passed, processing next unprocessed PADO message, and deleting message timer.
7. The dual stack dialing method of claim 6, wherein the step S6 specifically includes;
when PPP authentication is successful, if the PPPoE client channel is an IPV4 PPPoE client channel, an IPCP protocol message is sent to a PPPoE server of a PADO message being processed to carry out NCP negotiation, and when the NCP negotiation is successful, the IPV4 dialing state is set to be successful so as to finish double-stack dialing; if the PPPoE client channel is the IPV6 PPPoE client channel, an IPV6cp protocol message is sent to the PPPoE server of the PADO message being processed to carry out NCP negotiation, and when the NCP negotiation is successful, the IPV6 dialing state is set to be successful so as to finish double stack dialing.
8. The dual stack dialing method of claim 1 further comprising:
and when all PADO messages in the linked list fail to be processed, sending a login failure prompt.
9. A dual stack dialing device, comprising: a processor and a memory;
the memory has stored thereon a computer readable program executable by the processor;
the processor, when executing the computer readable program, implements the steps in the dual stack dialing method of any of claims 1-8.
10. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps in the dual stack dialing method as claimed in any one of claims 1-8.
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| CN100561969C (en) * | 2007-04-03 | 2009-11-18 | 中兴通讯股份有限公司 | A kind of broad band access method based on PPPoE |
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